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android 扫雷小游戏

时间：2020-12-27 12:43:06

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android 扫雷小游戏

先看效果图：

初始游戏界面：

翻开块和标记块界面：

游戏结束界面：

菜单界面：

更换难度界面：

查看游戏记录界面：

代码分析

Block.java

这部分代码实现的是游戏界面的板块

设置四个变量来记录当前块是否被翻开，当前块是否是地雷，是否把当前快标记为地雷（也就是插旗子），当前块周围的地雷数量。

关键部分代码：

//设置翻开状态public void setNumberOfSurroundingMines(int number) {this.setBackgroundResource(R.drawable.selected);//设置翻开背景图updateNumber(number);//设置周围雷数}//添加雷块标识public void setMineIcon() {this.setBackgroundResource(R.drawable.dl);}//添加标记标识public void setFlagIcon(boolean enabled) {if (!enabled) {this.setBackgroundResource(R.drawable.hq);} else {this.setTextColor(Color.BLACK);}}//清除所有标记public void clearAllIcons() {this.setText("");this.setTextColor(R.drawable.unselected);}private void setBoldFont() {this.setTypeface(null, Typeface.BOLD);}//翻开方块public void OpenBlock() {if (!isCovered) {return;}isCovered = false;//如果为雷设置地雷标识if (hasMine()) {setMineIcon();} else {setNumberOfSurroundingMines(numberOfMinesInSurrounding);//根据周围雷数设置翻开状态及显示数字}}

LevelActivity

这部分把玩家选择的难度easy或hard传递给MenuActivity

package com.example.saolei;import androidx.appcompat.app.AppCompatActivity;import android.content.Intent;import android.os.Bundle;import android.view.View;public class LevelActivity extends AppCompatActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_level);}/*根据不同难度返回相应参数*/public void Easy(View view) {Intent data = new Intent();data.putExtra("result", "easy");setResult(2, data);finish();}public void Hard(View view) {Intent data = new Intent();data.putExtra("result", "hard");setResult(2, data);finish();}public void Return(View view) {Intent data = new Intent();data.putExtra("result", "");setResult(2, data);finish();}}

MenuActivity

这部分是菜单页面，包括难度选择和游戏记录的查看

这里接收难度选择界面传回的参数并将其传回主界面处理

package com.example.saolei;import androidx.appcompat.app.AlertDialog;import androidx.appcompat.app.AppCompatActivity;import android.content.Intent;import android.os.Bundle;import android.view.View;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.io.InputStreamReader;import java.util.Scanner;public class MenuActivity extends AppCompatActivity {String t = "easy";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_menu);}@Override//接收难度界面传回的参数并将其传回主界面处理protected void onActivityResult(int requestCode, int resultCode, Intent data) {super.onActivityResult(requestCode, resultCode, data);if (resultCode == 2) {Intent level = new Intent();t = data.getStringExtra("result");level.putExtra("result", t);setResult(1, data);finish();}}//点击新游戏按钮，将结果传回主界面public void NewGame(View view) {Intent data = new Intent();data.putExtra("result", "newgame");setResult(1, data);finish();}//点击改变难度按钮，启动难度选择界面public void ChangeLevel(View view) {Intent level = new Intent(MenuActivity.this, LevelActivity.class);startActivityForResult(level, 2);}//点击游戏记录按钮，显示记录public void Record(View view) {String filename = getExternalCacheDir().getAbsolutePath() + "/gamerecord.txt";//文件路径File file = new File(filename);Scanner inputStream = null;FileInputStream fis = null;BufferedReader br = null;String str;String message = "" + "级别" + " " + "胜负" + " " + "时间\n";//若文件不存在，显示暂无记录if (!file.exists()) {new AlertDialog.Builder(this).setMessage("暂无记录！").setNegativeButton("确定", null).create().show();}else {try {//读取文件记录并生成对话框显示inputStream = new Scanner(new FileInputStream(filename));int i = 1;fis = new FileInputStream(filename);br = new BufferedReader(new InputStreamReader(fis));while ((str = br.readLine()) != null) {message = message + (i + ". " + str + "\n");i++;}new AlertDialog.Builder(this).setMessage(message).setNegativeButton("确定", null).create().show();fis.close();br.close();} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {inputStream.close();}}}//点击返回按钮，回传结果到主界面public void Return1(View view) {Intent data = new Intent();data.putExtra("result", "start");setResult(1, data);finish();}}